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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Piezo-elec. quartz | $16,172 | $35,691 | $11,097 | $7,335 | | $1,133 | $9,041 |
| Synthetic/reconstructed precious/semi-precious stones (excl. piezo-electric ... | $24,034 | $6,417 | | $10,852 | | $360 | $259 |
| Synthetic/reconstructed precious/semi-precious stones, wkd./graded...; ungr ... | $51,966 | $123,433 | $71,262 | $22,683 | $246,345 | $6,476 | $34,364 |
| Total | $92,172 | $165,541 | $82,359 | $40,870 | $246,345 | $7,969 | $43,664 |
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